Ventilator



R. HERDLICKA.

VENTILATOR. APPLICATION FILED JUNE 30-192L Patented Aug. 29, 1922.

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nonnnr nanometre, or cn'rcneo, rimrnors,

vnivrrna ron.

Be it known that 1 Roxanna Hnimniom, a citizen of the United States, residing at Chicago, inthe county of Cook andState of Illinois, have invented new and'useful lm' provements in Ventilators, of which the fol- The invention relates toimprovements in ventilators. i v a v The object of the present invention is to, improve theconstruction of ventilators and to provide a simple, practical, durable and comparatively inexpensive construction adapted to protect a draft or eduction pipe from rains, snow and the like and capable of preventing the wind from'choking and enter-, ing with theoperation of the said draft or, eduction pipe and of catching: currentsof air from any direction and of causing the same to produce upward currents inthe device exteriorly of the draft oreduction pipe to cause a suction and positive circulation or upward draft through the pipe. 1

With these and other objects in view the invention consists in the novel construction, combination and arrangement of parts here-- inafter fully described, illustrated ,in the accompanying drawings and pointed out in the claims hereto appended, it-being understood that various changes in the form, proportion and minor details of construction, within the scope of the claims, may be resorted to without departing from the spirit or sacrificing any of the-advantages of the invention:

In the drawings in which like characters of reference designate corresponding parts in the several figures; I i Y -Figure 1 is a side elevation of a ventilator constructed in accordance withithis inven tion. I

Figure 2 is a central verticalsectional view of the same. i I

Figure 3 is a reverse plan view of the ventilaton r i Figure 4 is a detail view of one of the defiectin g plates. 1

Figure 5 is a similar View of one of the connecting plates.

In the accompanying drawing in which 18 illustrated the preferred embodimentof the invention, the universal ventilator which may be constructed of any suitable material comprises in its construction a conical cap 1 and an intermediate trunco-conical sec tion or member 2 located below the conical Specification of Letters Patent. P tente 192 1921. Serial No. 481,525. 3

cap and spaced from the same and fromthe upper end of a draft or eduction pipe 3. The intermediate section or member 2 which extends above and below the upper edge of the verticaldraft oreduetion pipe sis providedc at its upper edge with an upwardly 'PI'OJBCCIDg substantially cylindrical flange 4c which extends above the lower edge of the conical cap 1. The said intermediatesection or memberQ is also provided at its lower edgewith an approximately cylindrical flange or portion 5 and the'marginal edges or flanges of; the conical cap and the intermediate sectionor member maybe crimped or plainas desired, The lower edgeof the cap 1 extendsdownwardly and forms amarginal Y i i flange 6 as clearly shown in Figure 2 of the drawing. Theintermediate' section or member 2 which forms the skirting around the upperportion of the'vertical pipe 3 is supported in spaced relation with the said pipe by'means of angle brackets 7 constructed of relatively stout'metal and composed of ver-- tica'l arms or portions 8 and; inclinedarms or portions 9 which are secured by rivets 10 and 11 to the pipe and to the intermediate section or member respectively, f The vertical armsS arearranged interiorly of the pipe 3 and the inclined arms are located at the inner or'lower face of the intermediatesecti'on or member 2. The conical cap is supported above and' in spaced relation with the inter q mediate section or member by; approximately I U-shap'ed brackets 12;composed of vertical a connecting portions and-upper andlower out-' wardly extending inclined arms 13 and14l arranged IGSPQGtlVQlY at theinnerior lower face of the conical capli and at the outer or upper face of'the intermediate sectiono'r member 2. Thelower arms 14 are secured to the 1n-' The vertical pipe 3 is Iequippedfwith sub- M termediate section or member by the rivets 11 and the upper: arms are fastened to the- I conical capby rivetsc15; I

stantially oval deflecting' plates 16 secured at diametrically opposite points to the vertical pipe bythe rivets 10 of the brackets and curved horizontallyas clearly shown in Figure 3 of the drawing and provided with marginal flanges 17 producing a slightly dished formation. The side portions of the deflecting plates curve outwardly and project from i the vertical pipe 3 and are spaced apart and provided with laterally projecting attaching flanges 18 to which are secured curved connecting plates 19; The deflecting plates 16 present outer concave faces while the connecting plates 19 present outwardly convex faces and the said plates 19 which are secured to the flanges 18- by rivets 2O extend at their side edges over the deflecting plates as shown in Figure 3 to cooperate therewith to provide grooves or channels for directing the currents of air upwardly. The connectin g plates 19 and the projecting side portions of the deflecting plates also form channels 21 for directing the air upwardly These upward currents of airpass through the space between the intemediate section or member and the upper end of the vertical pipe 3 and they produce a suction and cause a positive upward draft throughthe vertical pipe 8. The arrangement of the conical cap and the intermediate section or member effectively shield the upper end of the pipe 3 from the weather and prevent rain, snow, hail and the like from entering the pipe. Also any choking of the pipe by reason of the air blowing directly across the top of the same is also prevented by the protecting conical cap and intermediate section. The projecting side portions 22 of the connecting plates are preferably reinforced at the vertical edges at 23 by bending the metal on itself and the said projecting side portions 22 form wings or portions and assist the deflecting plates in catching the air and producing the upward currents at the outer face of the plates 16. The lower portion of the dished deflecting plates project below the connecting plates and the connecting plates are cut away at their lower edges to form recesses 24 between the deflecting plates. As the ventilator is adapted to catch the currents of air from any direction, it is unnecessary to mount the ventilator for rotary movement and the ventilator is thereby enabled to operate as a universal ventilator inutilizing the wind blewing from any direction. What is claimed is:

1. A ventilator of the class described in eluding a vertical pipe, a conical member or from the vertical pipe to form channels or passages for the air.

2. A ventilator of the class described including a vertical pipe, a conical member or portion supported above the pipe in spaced relation with the same, deflecting plates secured to the exterior of the vertical pipe and dished to form grooves or channels and connecting plates secured to the deflecting plates at the side portions thereof and spaced from the vertical pipe to form channels or passages for the air, said connecting plates having their side portions projecting over the deflecting plates and cooperating therewith plates secured to the pipe exteriorly there of and provided at opposite sides with attaching flanges and forming grooves or channels and connecting plates secured to the attaching flanges of the deflecting plates and having side portions extending over the deflecting plates.

5. A ventilator of the class described including a vertical pipe, dished deflecting plates secured to the exterior of the vertical pipe and presenting outer concave faces and curved connecting plates secured to the side portions of the deflecting plates and projecting over the same, said deflecting plates being projected below the connecting plates and the latter being cut away at their lower portions between the deflecting plates.

6. In a device of the class described the combination with a vertical pipe, a conical cap thereon, a pluralityv of curved deflecting plates seeuredto the upper end of said pipe.

at diametrically opposite points thereon, and oppositely curved connecting plates secured to the side portions of the deflecting plates and projecting over the same.

In testimony whereof I have hereunto. set my hand.

nonnn'r HERDLICKA. 

